Specifications
Electrical Specifications
4-4
Coded Electrical Transmitter
Tx Clock and Data
Clock 155.52 MHz with 50% ± 10%duty cycle (typical)
Data Serial stream: 155.52 Mb/s (nominal)
The exact transmit bit rate is derived from the binary clock
and data input signals
Format CMI
Output
Signals
STS-3 and STM-1
Signal Level 0.5 V
pk
± 10%
Return Loss > 15 dB (7 MHz to 234 MHz)
Impedance Unbalanced, 75 Ω to ground (nominal)
Protection Open/short circuit protected
Connector BNC
Clock 155.52 MHz with 50% ± 10% duty cycle (typical)
Data Serial stream: 155.52 Mb/s ± 20 ppm serial
Format Non-return to zero (NRZ)
Timing Data set-up time: > 3.9 ns
Data hold time: > 1.1 ns
Impedance 50 Ω nominal, terminated to −2 V
Level ECL
Interface DC coupled
Connector SMA
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